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""'sheets-Sheet A1. C. E'. MORTON 8v S. F. BROWN. GUTTER AND CUTTER BAR 4FOB. -MOWERS AND REAPEBS.

Patented Pebl. '7, 1888.'

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O. RMORTON 8v S.'F. BROWN. A A GUTTER AND GUTTER BAR POR MOWERS AND REAPBRS'.

No.377,464. Patented 118101.11888.,-

5mm/ww@ @11 -I 71154' @luca/leg UNITED STATES.

' cHARLRs EVRRRTT MoR'roN AND SIDNRYFRANKLIN BROWN, oF'MA'DIsoN- PATENT 'rrr-CR.r

VILLE, KENTUCKY. l

CUTTER AND'ouTTER-BAR Foa MowERs ANDREAPIEIRS;l

SPECIFICATION forming part of Letters Patent No. 377,464. dared February '7, 188e. .Y

Application filed October 4, 1887. Serial lo/251,470. (No model.)

To all whom t may concern:

Be it known that we, OHARLEsE'vERETT MoRToN and SIDNEY FRANKLIN BROWN, citizens ofthe United States, residing atMadison- '5'ville, in the county-of Hopkins andy State of Kentucky, have inventedcertain new and useful Improvements in Gutters andCutter-Bars for Mowers and Reapers; and we do declare the following to be a full, clear, a-nd exact de- Io/ scription ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to the accompanying drawings, and to the letters and gures of reference marked thereon, I which form a part of this specification.

This invention Irelates to improvement in ycutters and cutter-bars for mowers and reapers, the object being to so construct them as to avgid the trouble and delay occasionedy by they common methodV of securing the cutters to the bar by screws when it is desired to replace a broken lcutter or to remove'and again attach them to the bar when taken off for grinding or other purposes; and this object is obtained'by making the cutters with a loop, so that they maybe slipped onto the bar or removed one after the other, and when all are in place secured by a nut screwed onto a projecting pin at the end of said bar, or by other suitable devices.

cutting two slits through the same and then bending the central part upward and the side strips down, thus forming an opening through 3 5 Whichthe bar having a parabolic crosssection could be insertedhave been invented; but these cutters have not come into 'general use, as it required a specially-constructed bar upon which to place them, and the slitting of the section weakened it to such`an extent that after being tempered it was very liable to break at the point where the slits terminated. Gutters have also been made with, a loop by bending the plate around a rectangular frame of the same cross-section as an ordinary'cutter-bar, thus forming a loop by lmeans of which they could lbe slipped onto the bar one after the other in the samel manner as those made by us.

In constructing the cutters according to our 5ol invention we form the same'of a plate of the best steel applicable to such purposes, which,

invention.

Cutters having a loop formed .in them by 'il a.

able number of rivet-holes,`ground, and ternpered.v A loop formed from a lower grade of .steel-plate, which may be readily bent into the 5 5:

desired shape Without danger of "cracking durying the operation, is then securely riveted to are enabled to use the best steel for the cutyters,which could not be done safelyif we were compelled t'o make one or more right-angled bends in the plate in order to form the loop.

In the accompanying drawings,which illustrate our invention, Figurel is a plan of a 7o cutter-bar provided with cutters constructed in accordance with the requirements of our Fig. 2 is a longitudinal section through the samey on linea' x, showingthe'f manner in which the cutters are secured to thel 7 5 bar- Fig. 3 is a perspective view of one of the,

cutters removed from the bar. y Figs. 4, 5, 6, 7, andS show various forms of devices which may be employedY to retain the cutters upon the end of the cutterbar.

In the several guresA representsthe'cutter-bar, and B B the 'cutters secured upon said bar. Each of these cutters consists of a blade, c, -formedfrom a plane piece of steel-plate cut to the shape of the ordinary cutter and pierced 1Y v i with the rivet-holes for the reception of rivets This plate, after receiving its shape, is tempered and ground in the same manner as the cutters in common use. They are then ready to receive the loop b, which is made 902A,

from a rectangular plate of steel or iron bent into such a shape as to inclose three sides lof the bar A, they fourth side being. covered by the cutter c. This loop is also pierced with holes lregistering with the holes in the plate o, to receivethe rivets by means of which thev loop is rmly secured to said plate. VThis j Acompletes the construction of the cutters, j which are then ready to be applied to the bar A in the following manner: krThe rst, one is [Qcslippedon the bar and moved thereon until it reaches the desired' position for the inner cutafter being cut toy form, is pierced with a suit f ters, and is there retained by a screw-bolt, d, passing th rough the cutter and bar; or a projection may be formed on said bar, against which the first cutter will abut. Additional cutters are then slipped onto the bar one after the other until the bar is full,when the last one, and consequently those which have preceded it, is secured in place by a nut, D. To prevent this nut D from unscrewing and allowing the cutter to slip off the bar when the machine is in use, two screws, e and e', one having a right and the other a left handthread, are inserted through the nut into the end of this bar, thus effectually preventing said nut from becoming accidentally unscrewed. Jam-nuts of the ordinary construction might be used in place ofthe nut D and its securing-screws; but the latter is preferred, as making a better finish for the end of the bar, as well as being more secure.

Figs. 4, 5, 6, 7, and 8 show modifications of the means used for holding the cutters on the bar, consisting of a collar so formed as to slip over the end of the bar and perforated at top and bottom by a mortise, preferably triangular in section. The end of the bar is similarly perforated, so that when the collar is placed thereon a key may be inserted in the mortise and driven until the cutters are brought to bearvrmly against each other. The projecting 3o ends of the key are then cut off, leaving sufficient to rivet down uponeach side, thustlrmly securing the collar on the end of the bar.

` Having thus described our invention, we claim as new, and desire to secure by Letters Patent, the following:

l. As an improvement in cutters for reapers andmowers, the straight unbent plate c, in combination with the cap b, bent to inclose three sides of the cutterbar, and riveted to said straight plate to form a loop for the reception of the cutter-bar, substantially as set forth.

2. As an improvement in cutters and cutterbars, the cutter formed of a straight plate with a cap forming a loopriveted thereto, in combination with the bar and the nut screwed upon the end of the same, with right and left Screws passing through said nut into the end ofthe bar to prevent its accidental removal, as set forth.

In testimony whereof we affix our signatures in presence of two Witnesses.

CHARLES EVERETT MORTON. SIDNEY FRANKLIN BRCNVN.

Witnesses:

JOHN G. MoRToN, C. H. SLATON. 

